Always use DummyAuthenticator with a password. You can communicate this
password to all your users via an out of band mechanism (like writing on
a whiteboard). Once you have selected a password, configure TLJH to use
the password by executing the following from an admin console.
sudo tljh-config set auth.DummyAuthenticator.password <password>
Remember to replace <password> with the password you choose.
Enable the authenticator and reload config to apply configuration:
sudo tljh-config set auth.type dummyauthenticator.DummyAuthenticator
sudo tljh-config reload
Users who are currently logged in will continue to be logged in. When they
log out and try to log back in, they will be asked to provide a username and